<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h4>很抱歉，你要访问的页面不存在！</h4>
    <h5>5秒钟之后进入网站首页</h5>

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        },5000)
    </script>
</body>
</html>